I was testing Prodave 6.1 with Delphi 7 and made simple programm that may be useful for somebody.I attached it like zip archive.This programm reads data from merker memory of the PLC (only read and only merker memory!).Connection is established throught Ethernet with Prodave 6.1.It is predefined that:1. IP adress of controller - 192.168.200.120;2. Rack number is 0;3. Slot number is 2.There is picture "Programm in work.jpg" that is illustrating interface and work of this programm.